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• Logging in to Wordpress through CodeIgniter DX Authentication

  - by whobutsb

  Hello All, I'm about to start a very large project of rebuilding my companies intranet. The plan is to have most of the intranet live in a CI application. I chose to use CI because i'm very familiar with all the CI methods. Some sections of the intranet are going to be wordpress blogs. For example the Human Resources Dept. and the Marketing Dept will have their own wordpress blogs. Ideally my plan is to log on to the intranet, with a CI authentication library like DXAuth by querying the Active Directory of the company. When I return the AD information for the user I will by saving their group memberships into a session. It would be fantastic if I could have that session information of the user be used by wordpress to log the user as an editor if they are a member of the Marketing Group. And allow users who are not members of the group be able to comment on that blog, with out logging into wordpress. My question is if there are any CI classes or Wordpress Plugins, or tutorals out there, of this sort of integration with the two systems. Thank you for your help!

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• How should I lock the table in this VB6 / Access application?

  - by Brian Hooper

  I'm working on a VB6 application using an Access database. The application writes messages to a log table from time to time. Several instances of the application may be running simultaneously and to distinguish them they each have their own run number. The run number is deduced from the log table thus... Set record_set = New ADODB.Recordset query_string = "SELECT MAX(RUN_NUMBER) + 1 AS NEW_RUN_NUMBER FROM ERROR_LOG" record_set.CursorLocation = adUseClient record_set.Open query_string, database_connection, adOpenStatic, , adCmdText record_set.MoveLast If IsNull(record_set.Fields("NEW_RUN_NUMBER")) Then run_number = 0 Else run_number = record_set.Fields("NEW_RUN_NUMBER") End If command_string = "INSERT INTO ERROR_LOG (RUN_NUMBER, SEVERITY, MESSAGE) " & _ " VALUES (" & Str$(run_number) & ", " & _ " " & Str$(SEVERITY_INFORMATION) & ", " & _ " 'Run Started'); " database_connection.Execute command_string Obviously there is a small gap between the calculation of the run number and the appearance of the new row in the database, and to prevent another instance getting access between the two operations I'd like to lock the table; something along the lines of SET TRANSACTION READ WRITE RESERVING ERROR_LOG FOR PROTECTED WRITE; How should I go about doing this? Would locking the recordset do any good (the row in the record set doesn't match any particular row in the database)?

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• operator overloading and inheritance

  - by user168715

  I was given the following code: class FibHeapNode { //... // These all have trivial implementation virtual void operator =(FibHeapNode& RHS); virtual int operator ==(FibHeapNode& RHS); virtual int operator <(FibHeapNode& RHS); }; class Event : public FibHeapNode { // These have nontrivial implementation virtual void operator=(FibHeapNode& RHS); virtual int operator==(FibHeapNode& RHS); virtual int operator<(FibHeapNode& RHS); }; class FibHeap { //... int DecreaseKey(FibHeapNode *theNode, FibHeapNode& NewKey) { FibHeapNode *theParent; // Some code if (theParent != NULL && *theNode < *theParent) { //... } //... return 1; } }; Much of FibHeap's implementation is similar: FibHeapNode pointers are dereferenced and then compared. Why does this code work? (or is it buggy?) I would think that the virtuals here would have no effect: since *theNode and *theParent aren't pointer or reference types, no dynamic dispatch occurs and FibHeapNode::operator< gets called no matter what's written in Event.

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• How can I change the default startup directory for cmd.exe?

  - by Nano HE

  Hi. My Procedure last day as below Click Start, Run and type Regedit.exe Navigate to the following branch: HKEY_CURRENT_USER \ Software \ Microsoft \ Command Processor In the right-pane, double-click Autorun and set the startup folder path as its data, preceded by “CD /d “. If Autorun value is missing, you need to create one, of type REG_EXPAND_SZ or REG_SZ in the above location. Example: To set the startup directory to D:\learning\perl, set the Autorun value data to CD /d D:\learning\perl Then I clicked Start, run and type cmd. It successfully. I could do perl practice more conveniently now. But today, I find when I try to build my Visual Studio 2005 solution which included some Pre-build event Command like this: perl.exe MyAppVersion.pl perl.exe AttrScan.pl It doesn't work. Show error: can't find the path. I check the environment variable setting and find the variable-path and it's value-c:\perl\bin\; still exist. Finially, I try to removed the Regedit.exe configuration "Autorun" value and test again. The issue fixed. I only changed the default startup directory for cmd.exe command. Why the pre-build event perl command was impacted? (I am using winxp and activePerl 5.8)

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• how do I block my rails app from being hit by bots?

  - by codeman73

  I'm not even sure I'm using the right terminology, whether this is actually bots or not. I didn't want to use the word 'spam' because it's not like I have comments or posts that are being created/spammed. It looks more like something is making the same repeated request to my domain, which is what made me think it was some kind of bot. I've opened my first rails app to the 'public', which is a really a small group of users, <50 currently. That was last Friday. I started having performance issues today, so I looked at the log and I see tons of these RoutingErrors ActionController::RoutingError (No route matches "/portalApp/APF/pages/business/util/whichServer.jsp" with {:method=>:get}): They are filling up the log and I'm assuming this is causing the slowdown. Note the .jsp on the end and this is a rails app, so I've got no urls remotely like this in my app. I mean, the /portalApp I don't even have, so I don't know where this is coming from. This is hosted at Dreamhost and I chatted with one of their support people, and he suggested a couple sites that detail using htaccess to block things. But that looks like you need to know the IP or domain that the requests are coming from, which I don't. How can I block this? How can I find the IP or domain from the request? Any other suggestions?

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• Append to the end of a Char array in C++

  - by Taylor Huston

  Is there a command that can append one array of char onto another? Something that would theoretically work like this: //array1 has already been set to "The dog jumps " //array2 has already been set to "over the log" append(array2,array1); cout << array1; //would output "The dog jumps over the log"; This is a pretty easy function to make I would think, I am just surprised there isn't a built in command for it. *Edit I should have been more clear, I didn't mean changing the size of the array. If array1 was set to 50 characters, but was only using 10 of them, you would still have 40 characters to work with. I was thinking an automatic command that would essentially do: //assuming array1 has 10 characters but was declared with 25 and array2 has 5 characters int i=10; int z=0; do{ array1[i] = array2[z]; ++i; ++z; }while(array[z] != '\0'); I am pretty sure that syntax would work, or something similar.

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• Single Loader to multiple Sprite Possible?

  - by Jeffrey Chee

  I've looked in various resources regarding this topic, and it seems to me that I need a Loader for every Sprite which contains an image file (png). I'm trying to make a Tile Rendering System, and have created a grid of X by Y sprites, but all of them actually reference the same image file. Is there any other way to do this? (Make the sprite share the same png data file) Some sample code of what I have done. // Create an array of X * Y Loaders var cTileLoaders:Array = new Array( 100 ); // for example 10 by 10 grid var cTiles:Array = new Array( 100 ); var nIndex:int = 0; var nImgLoadCount:int = 0; for ( ; 100 > nIndex; ++nIndex ) { cTileLoaders[ nIndex ] = new Loader(); cTiles[ nIndex ] = new Sprite(); // perform more sprite initialization .... cTileLoaders[ nIndex ].contentLoaderInfo.addEventListener( Event.COMPLETE, ImageLoaded cTileLoaders[ nIndex ].Load( new URLRequest( "some image path" ) ); } // handler for image loaded function ImageLoaded( eEvent:Event ):void { ++nImgLoadCount; // when all 100 sprite data are loaded // assuming there is no i/o error if ( 100 == nImgLoadCount ) { cTiles[ nIndex ].addChild( cTileLoaders[ nIndex ].content ); } }

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• Need some ideas on how to acomplish this in Java (parsing strings)

  - by Matt

  Sorry I couldn't think of a better title, but thanks for reading! My ultimate goal is to read a .java file, parse it, and pull out every identifier. Then store them all in a list. Two preconditions are there are no comments in the file, and all identifiers are composed of letters only. Right now I can read the file, parse it by spaces, and store everything in a list. If anything in the list is a java reserved word, it is removed. Also, I remove any loose symbols that are not attached to anything (brackets and arithmetic symbols). Now I am left with a bunch of weird strings, but at least they have no spaces in them. I know I am going to have to re-parse everything with a . delimiter in order to pull out identifiers like System.out.print, but what about strings like this example: Logger.getLogger(MyHash.class.getName()).log(Level.SEVERE, After re-parsing by . I will be left with more crazy strings like: getLogger(MyHash getName()) log(Level SEVERE, How am I going to be able to pull out all the identifiers while leaving out all the trash? Just keep re-parsing by every symbol that could exist in java code? That seems rather lame and time consuming. I am not even sure if it would work completely. So, can you suggest a better way of doing this?

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• JavaScript: Replacement for XMLSerializer.seralizeToString()?

  - by NRaf

  I'm developing a website using the Seam framework and the RichFaces AJAX library (these isn't really all that important to the problem at hand - just some background). I seem to have uncovered a bug, however, in RichFaces which, in certain instances, will cause AJAX-based updating to fail in IE8 (see here for more info: http://community.jboss.org/message/585737). The following is the code where the exception is occurring: var anchor = oldnode.parentNode; if(!window.opera && !A4J.AJAX.isWebkitBreakingAmps() && oldnode.outerHTML && !oldnode.tagName.match( /(tbody|thead|tfoot|tr|th|td)/i ) ){ LOG.debug("Replace content of node by outerHTML()"); if (!Sarissa._SARISSA_IS_IE || oldnode.tagName.toLowerCase()!="table") { try { oldnode.innerHTML = ""; } catch(e){ LOG.error("Error to clear node content by innerHTML "+e.message); Sarissa.clearChildNodes(oldnode); } } oldnode.outerHTML = new XMLSerializer().serializeToString(newnode); } The last line (the one with XMLSerializer) is where the exception is occurring in IE. I was wondering if anyone knows of any replacement method / library / etc I could use there (only on IE is fine). Thanks.

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• onActivityResult method not being called Android

  - by Chintan

  I am trying to send data from child activity to parent. But somehow, onActivityResult(..) is not getting called. here is code Parent activity selectedText.setOnTouchListener(new OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { if (event.getActionMasked() == MotionEvent.ACTION_DOWN) { Intent intent = new Intent(Parents.this,Child.class); startActivityForResult(intent, 1); } return true; } }); @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case 1: if (resultCode == RESULT_OK) { if (data.hasExtra("selText")) { selectedText.setText(data.getExtras().getString( "selText")); } break; } } Child Activity: I can see selected value set in the setResult(). But after finish of child activity, it's not going back to parent activity. textListView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int myItemInt, long arg3) { selectedFromList =(String) (textListView.getItemAtPosition(myItemInt)); Intent data = new Intent(); data.putExtra("selText", selectedFromList); setResult(RESULT_OK,data); finish(); } });

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• Android designing an app to keep me logged into a wifi access point

  - by MrGibbage

  At the gym where I work out, they have an open wifi access point. The way it is set up, once you "connect", you have to navigate to a web page (it is a 1.1.X.X ip address) and click the "I agree" button, after presumably reading the user agreement. The problem is, they have it set up to log you out once an hour, which always happens in the middle of my workout. I have the SSID remembered, so it connects automatically when I come in range, but I get an android notification that further action is needed to fully connect. What I was wondering is if there a work around so that I don't have to click-through every hour? I was thinking of writing an app that could detect when I was in range, or when "half-connected", and then have it somehow complete the registration process. Perhaps this will have to be done by loading the web page in memory and then somehow clicking the "I agree" button. What I would like help with is: 1) what is the terminology involved here? What state is the connection in when I am connected, but I haven't clicked through? What other connection states may apply? If I knew that, I might just be able to research this and come up with a solution. Are these different states "detectable"? It seems like it is since I get a notification that I need to complete the registration process when I am "half-connected". 2) I know there are plugins for desktop browsers that can click buttons (like the keepass plugins, which will log you into a site). How could I replicate this in Android? Ideally I would like to do it internally, in memory, rather than firing up a browser. Possible? Comments? Is my understanding and thought process sound here, or am I overlooking something?

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• A specific data structure

  - by user550413

  Well, this question is a bit specific but I think there is some general idea in it that I can't get it. Lets say I got K servers (which is a constant that I know its size). I have a program that get requests and every request has an id and server id that will handle it. I have n requests - unknown size and can be any number. I need a data structure to support the next operations within the given complexity: GetServer - the function gets the request ID and returns the server id that is supposed to handle this request at the current situation and not necessarily the original server (see below). Complexity: O(log K) at average. KillServer - the function gets as input a server id that should be removed and another server id that all the requests of the removed server should be passed to. Complexity: O(1) at the worst case. -- Place complexity for all the structure is O(K+n) -- The KillServer function made me think using a Union-Find as I can do the union in O(1) as requested but my problem is the first operation. Why it's LogK? Actually, no matter how I "save" the requests if I want to access to any request (lets say it's an AVL tree) so the complexity will be O(log n) at the worst case and said that I can't assume Kn (and probably K Tried thinking about it a couple of hours but I can't find any solution. Known structures that can be used are: B+ tree, AVL tree, skip list, hash table, Union-Find, rank tree and of course all the basics like arrays and such.

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• Asynchronously get user data in facebook tab?

  - by Kristoffer Nolgren

  Using the php sdk, I check if a user inside a tab likes the corresponding page. If i put the following code inside index.php and use that page as my page-tab-url, <?php require_once("facebook/facebook.php"); // Create our application instance // (replace this with your appId and secret). $facebook = new Facebook(array( 'appId' => '1399475990283166', 'secret' => 'mysercret', 'cookie' => true )); $signed_request = $facebook->getSignedRequest(); echo $signed_request['page']['liked']; ?> it outputs '1'. I would like to achieve this asynchronously instead, so I put the php in a separate file and try to access it using ajax instead $http.post('/facebook/likes.php'). success(function(data){ console.log(data); }).error(function(data){ console.log(data); } ); This sample is using angular, but what javascript library i'm using probably doesn't matter. When I access the info with javascript Facebook doesn't seem to get the info that I liked the page. Adding a print_r($facebook); on the page I'm retreiving the same values as if i'm not in a facebook-tab: ( [sharedSessionID:protected] => [appId:protected] => 1399475990283166 [appSecret:protected] => 679fb0ab947c2b98e818f9240bc793da [user:protected] => [signedRequest:protected] => [state:protected] => [accessToken:protected] => [fileUploadSupport:protected] => [trustForwarded:protected] => ) Can I access theese values asynchronosly somehow?

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• BlackBerry 5.0 causing full menu to show on navigationClick

  - by jwadsack

  I have a BlackBerry app that is built for 4.5.x SDK. The first page of the app shows a list of fields and each field can be highlighted and clicked. The click action shows a new view with additional information about the field. This all works fine in 4.5, 4.6 and 4.7 and on the sim with 5.0. On a real 9000 running 5.0, when clicking the trackball on an item in the list, the full menu is showing rather than the click event getting consumed (or even fired) for the field. The view is derived from MainScreen and looks something like this: public class ListView extends MainScreen { public ItemCollection list = new ItemCollection; protected void sublayout( int maxWidth, int maxHeight ) { int i = 1; while(( item == (Item)list.nextElement()) != null) { ItemField field = new ItemField(item, i++); add(field); } } } This class does not consume navigationClick, but shouldn't need to, right? The field class does consume navigationClick event: public class ItemField extends Field { protected boolean navigationClick(int status, int time) { controller.showDeal(item.id, Session.current); return true; } } Is there something that changed in 5.0 that I need to add to have this app work the same for all platforms?

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• How to avoid the linebreak inside a word (Static Layout

  - by Addev

  I'm trying to make a text as big as I can making it fit a Rect. basically I use a StaticLayout for pre-calculate the text size and make it fit the Rect's height: // Since the width is fixed for the StaticLayout it should only fit the height while (currentHeight>Rect.getHeight()){ size-=2; } textPaint.setTextSize(size); The problem is that if the Rect is very high, the exit condition is reached but breaking the words (see the capture). Is there a way for avoid this? Goal: Actual: Current code: textSize=MAX_TEXT_SIZE do { if (textSize < mMinTextSize) { Log.i(TAG, "Min reached"); textSize = mMinTextSize; textPaint.setTextSize(textSize); fits = true; } else { textPaint.setTextSize(textSize); StaticLayout layout = new StaticLayout(text, textPaint, targetWidth, Alignment.ALIGN_NORMAL, 1.0, 0, true); layout.draw(canvas); float heightRatio= (float) layout.getHeight() / (float) targetHeight; boolean fitsHeight = heightRatio<= 1f; if (fitsHeight) { fits = true; } else { textSize -= 2; } } Log.i(TAG, "textSize=" + textSize + " fits=" + fits); } while (!fits); thanks

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• iOS TableView crash don't know how. Here is the app

  - by jollyr0ger

  Hi! In my app that you can download here: http://ge.tt/2DDqfJa I've started a discussion but is died here iOS TableView crash loading different data The problem is when I back from viewing the YouTube video to the recipes list, the app crash... And when i select a category for the second time, where have to load a tableview with different data source, it crash. This is the crash log Program received signal: “EXC_BAD_ACCESS”. (gdb) bt #0 0x00f0da63 in objc_msgSend () #1 0x04b27ca0 in ?? () #2 0x00002665 in -[RecipesListController viewWillAppear:] (self=0x4b38a00, _cmd=0x6d81a2, animated=1 '\001') at /Users/claudiocanino/Documents/iOS/CottoMangiato/Classes/RecipesListController.m:67 #3 0x00370c9a in -[UINavigationController _startTransition:fromViewController:toViewController:] () #4 0x0036b606 in -[UINavigationController _startDeferredTransitionIfNeeded] () #5 0x0037283e in -[UINavigationController pushViewController:transition:forceImmediate:] () #6 0x04f49549 in -[UINavigationControllerAccessibility(SafeCategory) pushViewController:transition:forceImmediate:] () #7 0x0036b4a0 in -[UINavigationController pushViewController:animated:] () #8 0x00003919 in -[CategoryViewController tableView:didSelectRowAtIndexPath:] (self=0x4b27ca0, _cmd=0x6d19e3, tableView=0x500c200, indexPath=0x4b2d650) at /Users/claudiocanino/Documents/iOS/CottoMangiato/Classes/CategoryViewCotroller.m:104 #9 0x0032a794 in -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] () #10 0x00320d50 in -[UITableView _userSelectRowAtPendingSelectionIndexPath:] () #11 0x000337f6 in __NSFireDelayedPerform () #12 0x00d8cfe3 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ () #13 0x00d8e594 in __CFRunLoopDoTimer () #14 0x00ceacc9 in __CFRunLoopRun () #15 0x00cea240 in CFRunLoopRunSpecific () #16 0x00cea161 in CFRunLoopRunInMode () #17 0x016e0268 in GSEventRunModal () #18 0x016e032d in GSEventRun () #19 0x002c342e in UIApplicationMain () #20 0x00001c08 in main (argc=1, argv=0xbfffef58) at /Users/claudiocanino/Documents/iOS/CottoMangiato/main.m:15 Another bt log: (gdb) bt #0 0x00cd76a1 in __CFBasicHashDeallocate () #1 0x00cc2bcb in _CFRelease () #2 0x00002dd6 in -[RecipesListController setRecipesArray:] (self=0x6834d50, _cmd=0x4293, _value=0x4e3bc70) at /Users/claudiocanino/Documents/iOS/CottoMangiato/Classes/RecipesListController.m:16 #3 0x00002665 in -[RecipesListController viewWillAppear:] (self=0x6834d50, _cmd=0x6d81a2, animated=1 '\001') at /Users/claudiocanino/Documents/iOS/CottoMangiato/Classes/RecipesListController.m:67 #4 0x00370c9a in -[UINavigationController _startTransition:fromViewController:toViewController:] () #5 0x0036b606 in -[UINavigationController _startDeferredTransitionIfNeeded] () #6 0x0037283e in -[UINavigationController pushViewController:transition:forceImmediate:] () #7 0x091ac549 in -[UINavigationControllerAccessibility(SafeCategory) pushViewController:transition:forceImmediate:] () #8 0x0036b4a0 in -[UINavigationController pushViewController:animated:] () #9 0x00003919 in -[CategoryViewController tableView:didSelectRowAtIndexPath:] (self=0x4b12970, _cmd=0x6d19e3, tableView=0x5014400, indexPath=0x4b2bd00) at /Users/claudiocanino/Documents/iOS/CottoMangiato/Classes/CategoryViewCotroller.m:104 #10 0x0032a794 in -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] () #11 0x00320d50 in -[UITableView _userSelectRowAtPendingSelectionIndexPath:] () #12 0x000337f6 in __NSFireDelayedPerform () #13 0x00d8cfe3 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ () #14 0x00d8e594 in __CFRunLoopDoTimer () #15 0x00ceacc9 in __CFRunLoopRun () #16 0x00cea240 in CFRunLoopRunSpecific () #17 0x00cea161 in CFRunLoopRunInMode () #18 0x016e0268 in GSEventRunModal () #19 0x016e032d in GSEventRun () #20 0x002c342e in UIApplicationMain () #21 0x00001c08 in main (argc=1, argv=0xbfffef58) at /Users/claudiocanino/Documents/iOS/CottoMangiato/main.m:15 Thanks

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• How does an ASP.NET programmer go from working on/developing existing sites, to creating one from sc

  - by SLC

  I've been an ASP.NET developer for some time, always working on existing ASP.NET pages, modifying functionality, adding features, tweaking things etc. but have never built a site up from scratch. I've read books on ASP.NET, and they generally talk you through the various features of ASP.NET with a mock up site, but it's always very basic and they jump straight in. The time has come however, to write a site from scratch for a client. I've never done this before. There are design considerations, but like a lot of ASP.NET sites, the basic idea is, you have a site, where users can log in, and save some information like their name and password and address. The site has some functionality, but that's the basic design of a majority of (business-related) asp.net websites I would wager. I know how to program in ASP.NET already on an existing site, but I don't know how to design my own properly that meets the criteria above. I guess the main worry is security. I don't know the best way to handle a simple log-in system that stores user information like their name and password. I understand there are a few approaches to this, but the catch with this project is that it has to be absolutely bulletproof. Maximum security. All those good practices for security, it needs to have them all. I'm not asking what they are, but I am asking where to begin. What should be the first steps after I do File New Project ? Where can I look for information about setting up a secure ASP.NET website? I'll figure out the content and page layout later, it's the framework that is the big thing. Any and all advice would be welcome. I really want to get my first from-scratch project right from the beginning. Just to confuse things, it's possible I will be using MVC, I am not sure if this has any impact.

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• Facebook call back function with timeout

  - by Dirty Bird Design

  So I've been getting my ass kicked pretty good with Facebook's moving target of an API. I need to display some hidden content after a person clicks 'like' on a landing page. I can somewhat get this to work, when the user clicks 'like' the normal fb dialogue appears and then goes away immediately and content is displayed. I have 'achieved' this with the following js. <script> FB.Event.subscribe('edge.create', function(href, widget) { document.getElementById('goodies').style.display = "block"; document.getElementById('fb-content').style.display= "block"; document.getElementById('copy').style.display = "none"; }); </script> I cannot find any documentation about a callback event after someone hits "post to facebook" or after the dialogue closes, only afte they hit like. How would I incorporate a setTimeout function into this to give people some time to fill out the fb dialogue? thanks. If anyone has a better way to do this I'm all ears. This is for a business page and I cannot seem to add an app to get an app ID anymore so the API is pretty useless to me at this point. Also, if the url to be liked is a fb page, the callbacks don't seem to fire. Other code used: <html xmlns:fb="http://ogp.me/ns/fb#"> <div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/all.js#xfbml=1"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk')); </script> <fb:like href="onlynonfburl.com" send="false" layout="button_count" width="450" show_faces="false" font="arial"></fb:like>

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• android Json show only lasy item

  - by 03uk

  i have one problem, my json parser show only last item! But at Logcat i see all item's! Can you help me? @Override protected void onPostExecute(JSONObject result) { super.onPostExecute(result); Log.d("Log", result.toString()); JSONObject jsn = result; try { JSONArray jarray = jsn.getJSONArray("item"); for (int i = 0; i < jarray.length(); i++){ JSONObject jsno = jarray.getJSONObject(i); title.setText(Html.fromHtml("<a href=\""+jsno.getString("link")+"\">"+jsno.getString("title")+"</a>")); cat.setText(jsno.getString("category")); date.setText(jsno.getString("pubDate")); desc.getSettings().setJavaScriptEnabled(true); desc.getSettings().setDefaultTextEncodingName("charset=UTF-8"); desc.loadData(jsno.getString("description"), "text/html; charset=UTF-8", "utf-8"); } } catch (JSONException e) { e.printStackTrace(); }

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• The sign of zero with float2

  - by JackOLantern

  Consider the following code performing operations on complex numbers with C/C++'s float: float real_part = log(3.f); float imag_part = 0.f; float real_part2 = (imag_part)*(imag_part)-(real_part*real_part); float imag_part2 = (imag_part)*(real_part)+(real_part*imag_part); The result will be real_part2= -1.20695 imag_part2= 0 angle= 3.14159 where angle is the phase of the complex number and, in this case, is pi. Now consider the following code: float real_part = log(3.f); float imag_part = 0.f; float real_part2 = (-imag_part)*(-imag_part)-(real_part)*(real_part); float imag_part2 = (-imag_part)*(real_part)+(real_part)*(-imag_part); The result will be real_part2= -1.20695 imag_part2= 0 angle= -3.14159 The imaginary part of the result is -0 which makes the phase of the result be -pi. Although still accomplishing with the principal argument of a complex number and with the signed property of floating point's 0, this changes is a problem when one is defining functions of complex numbers. For example, if one is defining sqrt of a complex number by the de Moivre formula, this will change the sign of the imaginary part of the result to a wrong value. How to deal with this effect?

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• Using Read-Only Fields in a C# WebBrowser

  - by TheDramaLlama

  I'm currently using a WebBrowser control in a C# WinForms application, and attempting to control some variability presented with this control. Basically, my users log in to a separate UI provided by my application, which then displays the WebBrowser control, navigates to a predetermined log-in URL, and then auto-fills the username and password fields on that page. However, in order to prevent unpredictable behavior in this WebBrowser control, I want to make these username and password text boxes read-only after they are auto-populated. Essentially, I want the user to see a browser page that has been filled out for them, and that cannot be edited. (This is so that any authentication errors can be handled by my application as opposed to the browser.) The code I'm currently using to populate the text fields and make them read only is as follows: webBrowser1.Document.GetElementById("username").InnerText = username; webBrowser1.Document.GetElementById("password").InnerText = password; webBrowser1.Document.GetElementById("username").Enabled = false; webBrowser1.Document.GetElementById("password").Enabled = false; Unfortunately, when I try to make the fields read-only, the authentication server acts like the password field was not filled out, and prompts the user to fill it out again after the "Submit" button is clicked. Is this expected behavior, and if so, what other methods can I try to prevent users from changing the credentials that the browser was auto-populated with?

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• How can I [simply] consume JSON Data in a Line of Business Web Application

  - by Atomiton

  I usually use JSON with jQuery to just return a string with html. However, I want to start to use Javascript objects in my code. What's the simplest way to get started using json objects on my page? Here's a sample Ajax call ( after $(document).ready( { ... }) of course: $('#btn').click(function(event) { event.preventDefault(); var out = $('#result'); $.ajax({ url: "CustomerServices.asmx/GetCustomersByInvoiceCount", success: function(msg) { // // Iterate through the json results and spit them out to a page? // }, data: "{ 'invoiceCount' : 100 }" }); }); My WebMethod: [WebMethod(Description="Gets customers with more than n invoices")] public List<Customer> GetCustomersByInvoiceCount(int? invoiceCount) { using (dbDataContext db = new dbDataContext()) { return db.Customers.Where(c => c.InvoiceCount >= invoiceCount); } } What gets returned: {"d":[{"__type":"Customer","Account":"1116317","Name":"SOME COMPANY","Address":"UNit 1 , 392 JOHN ST. ","LastTransaction":"\/Date(1268294400000)\/","HighestBalance":13922.34},{"__type":"Customer","Account":"1116318","Name":"ANOTHER COMPANY","Address":"UNIT #345 , 392 JOHN ST. ","LastTransaction":"\/Date(1265097600000)\/","HighestBalance":549.42}]} What I'd LIKE to know, is what are people generally doing with this returned json? Do you iterate through the properties and create an html table on the fly? Is there way to "bind" JSON data using a javascript version of reflection ( something like the .Net GridView Control ) Do you throw this returned data into a Javascript Object and then do something with it? An example of what I want to achieve is to have an plain ol' html page ( on a mobile device )with a list of a Salesperson's Customers. When one of those customers are clicked, the customer id gets sent to a webservice which retrieves the customer details that are relevant to a sales person. I know the SO talent pool is quite deep so I figured you all here would be able to guide in the right direction and give me a few ideas on the best way to approach this.

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• Why do I get Error#2036 in flash AS3 and how to solve this?

  - by sydas

  I'm currently building an application in flash in relation to RSS/XML feeds for a project. I'm stuck at the moment because I keep getting this error: Error opening URL 'http://distilleryimage6.instagram.com/.jpg' Error #2044: Unhandled IOErrorEvent:. text=Error #2036: Load Never Completed. I know my string picURL is not functioning properly, but am I missing something that makes it not functional? This is my code: package { import flash.display.*; import flash.events.*; import flash.net.*; public class instagramFeed extends MovieClip { //link to #rit xml loader public var ritFileRequest = new URLRequest("http://instagram.com/tags/rit/feed/recent.rss"); public var ritXmlLoader = new URLLoader(); //link to #rochester xml loader // same as above public variables public function instagramFeed() { // constructor code trace("About to load..."); //Loads #rit hashtag xml data. ritXmlLoader.load(ritFileRequest); ritXmlLoader.addEventListener(Event.COMPLETE, displayRITInfo); } //focuses on data with #rit hashtag public function displayRITInfo(e:Event):void{ var ritInstagramData:XML = new XML(ritXmlLoader.data); var ritInfoList:XMLList = ritInstagramData.elements().item; trace(ritInfoList); //load the image var ritPic:String = ritInfoList.*::condition.@code; var picURL:String = "http://distilleryimage6.instagram.com/" + ritPic + ".jpg"; trace(picURL); //show the image on the stage! var ritImageRequest:URLRequest = new URLRequest(picURL); var ritImageLoader:Loader = new Loader(); ritImageLoader.load(ritImageRequest); addChild(ritImageLoader); ritImageLoader.x=200; ritImageLoader.y=100; ritImageLoader.scaleX = 3; ritImageLoader.scaleY = 3; } } }

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• Issue with ko.observableArray

  - by user1574860

  I am using Knockout plugin. The following is my code. In this i am making getting the ceremony list from the server and then save that list in the array. But the problem is in IniitialCallForCeremonies(). The array is not initializing with the returned array from IniitialCallForCeremonies() function. function CeremonyViewModel() { var self = this; self.Ceremonies = ko.observableArray(InitialCallForCeremonies()); } $(document).ready(function () { ko.applyBindings(new CeremonyViewModel()); }); function InitialCallForCeremonies() { var request = $.ajax({ url: "address", type: "GET", async: false, dataType: "JSON" }).success(function (data) { var tempArray = new Array(); $.each(data, function (index, value) { tempArray.push(new Ceremony(value)); }); return tempArray; }); } function Ceremony(val) { this.Id = val.Id; this.Event = val.Event; this.Date = val.Date; this.Guest = val.Guest; }

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• ASP.NET UserControl Caching

  - by Adam

  Hi, This thing is driving me nuts. I have a UserControl that is called WebUserControl. I need to cache this control, so I put the following in the WebUserControl.ascx: <%@ OutputCache Duration="240" VaryByParam="FeedName" %> Then I have the Default.aspx file in which I have: <div class="divInnerLeft" id="L1" runat="server"> <uc1:WebUserControl FeedId="a1" ID="a1" runat="server" FeedName=""/> </div> <div class="divInnerMiddle" id="M1" runat="server"> <uc1:WebUserControl FeedId="a3" ID="a3" runat="server" FeedName=""/> </div> In the Page_Load event I set the FeedName property - according to the user preferences. The problem is that after initially loading the page, the controls are generated OK. But then, in the Page_Load event they are not available again. So the a1 and a3 are null and I cannot set the FeedName for different user. How to solve this? Thanks!

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